Hello, ehalai.
Let me share some information about the QuickBooks Desktop discontinuation policy and upgrade.
QuickBooks Point of Sale version 18 is no longer supported. This is the reason the only available link is for version 19. You'll want to read this article to learn more about the policy and upgrade information: QuickBooks Desktop service discontinuation policy and upgrade information.
Please let me know if you have any follow-up questions. I'm always happy to help.
